South Barrington is located in Illinois. South Barrington, Illinois has a population of 5,012. South Barrington is more family-centric than the surrounding county with 32.14% of the households containing married families with children. The county average for households married with children is 29.73%.
The median household income in South Barrington, Illinois is $198,388. The median household income for the surrounding county is $72,121 compared to the national median of $69,021. The median age of people living in South Barrington is 49.9 years.
The average high temperature in July is 83.4 degrees, with an average low temperature in January of 12.3 degrees. The average rainfall is approximately 37.6 inches per year, with 37.5 inches of snow per year.